Date: Tue, 05 Jan 1999 22:03:15 -0500 From: Drew Baxter <netmonger@genesis.ispace.com> To: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>, "Daniel O'Connor" <doconnor@gsoft.com.au> Cc: hackers@FreeBSD.ORG, yokota@zodiac.mech.utsunomiya-u.ac.jp Subject: Re: psm0 on laptops. Message-ID: <4.1.19990105215759.00c0b6d0@genesis.ispace.com> In-Reply-To: <199901060232.LAA26934@zodiac.mech.utsunomiya-u.ac.jp> References: <Your message of "Wed, 06 Jan 1999 11:55:33 %2B1030." <XFMail.990106115533.doconnor@gsoft.com.au> <XFMail.990106115533.doconnor@gsoft.com.au>
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At 11:32 AM 1/6/99 +0900, Kazutaka YOKOTA wrote: > >>On 05-Jan-99 Nate Williams wrote: >>> Not that I'm aware of. If you have it plugged in to the PS/2 port, you >>> *can* switch to the serial version after bootup by physically switching >>> it and re-configured X to use the serial port version. >>Use moused and tell X to use sysmouse, thats why its there. >>Then X gets events from both mice :) >> >>> The reason it works under Windblows is because the mouse driver is a >>> necessary part of the OS, and under FreeBSD it's just another device so >>> the OS/userland stuff isn't integrated like under Windows. (Which also >>> explains why unix is generally more robust, since not everything is >>> integrated together with the OS...) >>Its still a pitty you can't tell the psm driver to reprobe the mouse... > >The psm driver can be instructed to reprobe the mouse after the system >is "resumed." See the PSM_RESETAFTERSUSPEND in the man page for >psm(4). > >But, the psm driver does not currently support PS/2 mouse reprobe >while the system is up, because it is understood that the PS/2 mouse >port in general is not meant for "hot plugging." I agree with that.. Because any of my desktop machines here the PS/2 port is handled by the BIOS. And the BIOS determines Keyboard/Mouse probing before bootstrap. That's what I've found anyway. My Acer laptop treats the trackpad as a separate PS/2 device if I recall.. You can actually use the mouse and the trackpad at the same time as well.. or FN+T disables the trackpad.. I think the PS/2 bus is just like any other bus, the devices are assigned an ID and then managed based on them. Explains why you can get a splitter for the 'ps/2 port' on the back of laptops too I guess. Alright, so I'm assuming a bunch of crap. The bottom line is the PS/2 ports don't like to be hot plugged, because the BIOS checks for the devices upon bootup. If you've ever seen a Packard Bell (amongst other machines) it shows "keyboard detected, mouse detected' during the initial startup, that determines if the computer has them or not right then and there... --- Drew "Droobie" Baxter Network Admin/Professional Computer Nerd(TM) OneEX: The OneNetwork Exchange, Bangor Maine USA http://www.droo.orland.me.us PGP ID: 409A1F7D To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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